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- CLEMENTINE EDR IMAGE SIS
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- Prepared by:
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- Eric Eliason
- Planetary Data System - Imaging Node
- Branch of Astrogeology
- United States Geological Survey
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- Erick Malaret
- Applied Coherent Technology
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- Nat Bachman
- Navigational Ancillary Information Facility
- Jet Propulsion Laboratory
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- October 1, 1994
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- Table of Contents
- 1. INTRODUCTION
- 1.1 PURPOSE
- 1.2 SCOPE
- 1.3 APPLICABLE DOCUMENTS
- 1.4 FUNCTIONAL DESCRIPTION
- 1.4.1 DATA CONTENT SUMMARY
- 1.4.2 DATA SOURCE AND TRANSFER METHOD
- 1.4.3 DATA RECIPIENTS AND UTILIZATION
- 1.5 ASSUMPTIONS AND CONSTRAINTS
- 2. ENVIRONMENT
- 3. ACCESS
- 4. DETAILED INTERFACE SPECIFICATIONS
- 4.1 DATA PRODUCT IDENTIFICATION
- 4.2 STRUCTURE AND ORGANIZATION OVERVIEW
- 4.3 PDS LABEL STRUCTURE DEFINITION AND FORMAT
- 4.3.1 GEOMETRIC AND VIEWING PARAMETER ASSUMPTIONS
- 4.3.2 PDS KEYWORD DEFINITIONS
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- APPENDIX I - SPICE Kernel Files Used In Clementine Data Products
- APPENDIX II - Data Compression Coefficients
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- 1. INTRODUCTION
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- 1.1 PURPOSE
-
- This Software Interface Specification (SIS) describes the organization
- and contents of the Clementine EDR (Experimental Data Record) Image data
- products. There are six cameras onboard the Clementine spacecraft that
- will produce image data: 1) A-Star-tracker camera (A-STAR), 2) B-Star-
- tracker camera (B-STAR), 3) LIDAR High-resolution camera (HiRes), 4)
- ultraviolet / Visible camera (UVVIS), 5) Near Infrared camera (NIR), and
- 6) the Long Wavelength Infrared Camera (LWIR). The Clementine EDR Data
- products are deliverable products to the Planetary Data System and the
- scientific community that it supports. All data formats are based on the
- PDS standard, version 3.0, as documented in the PDS Standards Reference
- [JPL Document D-7669, November 1992, available through the PDS].
-
- 1.2 SCOPE
-
- This specification is useful to those who wish to understand the format
- and content of the Clementine EDR Image data products. Typically, these
- individuals include software engineers, data analysts, and planetary
- scientists. The SIS applies to the EDR data products produced during the
- course of Clementine Mission operations.
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- 1.3 APPLICABLE DOCUMENTS
-
- The Clementine EDR SIS is responsive to the following Documents:
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- <> NASA Research Announcement, Science Team for the Clementine Mission
- Deep Space Program Science Experiment (DSPSE), January 1993,
- NRA-93-OSSA-2.
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- <> DSPSE Experiment Manifest, Naval Center for Space Technology, May
- 1993 SSD-D-DS-018
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- <> Planetary Data System Standards Reference, 1992, JPL D-7669.
- Distributed by the Planetary Data System, Jet Propulsion Laboratory
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- <> Planetary Science Data Dictionary Document, 1992, JPL D-7116.
- Distributed by the Planetary Data System, Jet Propulsion Laboratory
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- 1.4 FUNCTIONAL DESCRIPTION
- 1.4.1 DATA CONTENT SUMMARY
-
- Each Clementine EDR data product consists of a single camera
- observation. The image data have been depacketized and reformatted with
- standard PDS labels, but are otherwise "raw". Raw data contain the
- geometric and radiometric characteristics of unprocessed and unrectified
- data. To make full utilization of the data, it is necessary to perform
- radiometric and geometric processing on the data products.
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- The imaging sensors are framing cameras using CCD technology. The Star
- tracking cameras (A-STAR and B-STAR) are used for spacecraft navigation
- and orientation. The science observation cameras (UVVIS, HIRES, NIR, and
- LWIR) acquire images in a wide spectral range from 415 to 8750
- nanometers. The UVVIS, HIRES, and NIR cameras have filter wheels that
- allow images to be acquired under six spectral filters. The LWIR camera
- has a single spectral filter. Table 1 shows the pixel dimensions of the
- images acquired by each camera and the center wavelength of each filter
- wheel position. Other than the image dimensions, the data products of
- each camera are identically formatted.
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- TABLE-1 Characteristics of each camera showing the dimension
- of an image in lines (rows) and samples (columns), the
- number of filter wheel positions, and the center wavelength of
- each filter.
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- Camera Lines/Samps/filt/Wavelength(Nanometers)
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- UVVIS 288 384 6 415,750,900,950,1000,650(broadband)
- NIR 256 256 6 1100,1250,1500,2000,2600,2780
- LWIR 128 128 1 8750
- HIRES 288 384 6 415,560,650,750,650(broadband), opaque
- A-STAR 576 384 N/A (broad band, no filter wheel)
- B-STAR 576 384 N/A (broad band, no filter wheel)
- ______________________________________________________________
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- 1.4.2 DATA SOURCE AND TRANSFER METHOD
-
- Clementine imaging data products are produced by the Clementine Mission
- Operations Center operated by the Naval Research Laboratory (NRL). The
- "NRL-ACT-MGRAB" software converts the data to the proper PDS labeled
- format.
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- 1.4.3 DATA RECIPIENTS AND UTILIZATION
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- The Clementine EDR data products are made available to NRL scientists
- and the NASA/Clementine Science team for initial evaluation and
- validation. At the end of the evaluation and validation period, the data
- are organized and stored on compact disc (CD) media and made available
- to the PDS for distribution to the science community. These products
- will be used for engineering support, direct science analysis, and
- construction of other science products.
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- 1.5 ASSUMPTIONS AND CONSTRAINTS
-
- The Clementine EDR data products contain compressed image data.
- Decompression will result in a raw image that is not corrected for
- instrument signature, effects of spacecraft motion, or effects of
- imaging geometry. Although there is enough information in the header to
- perform some processing, for more sophisticated processing, ancillary
- data will be required. Examples of ancillary files are calibration
- files, viewing geometry files, (e.g. SPICE kernels), image index tables,
- etc.
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- 2. ENVIRONMENT
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- The Clementine EDR data products are stored on CD media according to the
- ISO 9660 Volume and Directory Standard. This standard is compatible on
- virtually all modern hardware platforms including UNIX, IBM/PC, and
- Macintosh computer environments.
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- The file headers contained on the Clementine CD-ROMs do not include
- extended attribute records (XAR). This means that VAX/VMS systems can
- not readily access the files. Without XARs, record attributes can not be
- associated with a file. VAX/VMS directory listings of these files will
- show "Record Attributes: None, Record Format: None" file
- characteristics.
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- 3. ACCESS
-
- The primary barrier or access to the Clementine EDR data products is the
- compressed format of the image data. Thus, decompression software is
- available on the archive to perform decompression. This software
- produces decompressed image files in a standard PDS format. The software
- will run on a variety of computer platforms.
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- 4. DETAILED INTERFACE SPECIFICATIONS
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- 4.1 DATA PRODUCT IDENTIFICATION
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- Each product will have a file name of the form "msfxxxxy.rrr". The file
- name is unique across all Clementine EDR data products. For more
- information on the file name refer to the PRODUCT_ID keyword definition
- in section 4.3.2. The product also contains a data set id that
- identifies the data set. For more information on the data set id see the
- DATASET_ID keyword definition in section 4.3.2.
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- 4.2 STRUCTURE AND ORGANIZATION OVERVIEW
-
- The Clementine EDR data products are constructed according to the data
- object concepts developed by the PDS. By adopting the PDS format, the
- Clementine EDR images are consistent in content and organization with
- other planetary image collections. In the PDS standard, the EDR image
- file is grouped into objects with PDS labels describing the objects. The
- Clementine EDR data products contain 1) an image object (the primary
- data), 2) a browse image object, and 3) an image histogram object. The
- image object contains the observed image data. The image data will exist
- in a compressed form (if the data are compressed on board the
- spacecraft), or an uncompressed form (if the data are not compressed on
- the spacecraft). The browse image object contains an uncompressed image
- of the original data that has been reduced in size by subsampling the
- image array. The browse image provides the capability to rapidly view
- the image collection at a reduced format. The image histogram object
- contains the histogram of the image after decompression. The image
- histogram object can be used to obtain statistical information about the
- image.
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- A description of the data compression coefficients used on the
- Clementine images is described in Appendix II.
-
- 4.3 PDS LABEL STRUCTURE DEFINITION AND FORMAT
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- The label area of the data file conforms to the PDS version 3 standards.
- For more information on this standard consult the PDS Standards
- Reference JPL D-7669 Document. The purpose of the PDS label is to
- describe the data product and provide ancillary information about the
- data product. An example of a PDS label is shown below:
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- EXAMPLE PDS LABEL FOR THE CLEMENTINE EDR DATA PRODUCTS
-
- PDS_VERSION_ID = PDS3
- /*** FILE FORMAT ***/
- RECORD_TYPE = UNDEFINED
- /*** POINTERS TO START BYTE OFFSET OF OBJECTS IN FILE ***/
- ^IMAGE_HISTOGRAM = 4788 <BYTES>
- ^BROWSE_IMAGE = 5812 <BYTES>
- ^IMAGE = 7540 <BYTES>
- /*** GENERAL DATA DESCRIPTION PARAMETERS ***/
- MISSION_NAME = "DEEP SPACE PROGRAM SCIENCE EXPERIMENT"
- SPACECRAFT_NAME = "CLEMENTINE 1"
- DATA_SET_ID = "CLEM1-L/E/Y-A/B/U/H/L/N-2-EDR-V1.0"
- PRODUCT_ID = "LUC0538B.032"
- ORIGINAL_PRODUCT_ID = "LUC00538.032"
- PRODUCER_INSTITUTION_NAME = "NAVAL RESEARCH LABORATORY"
- PRODUCT_TYPE = EDR
- EDR_SOFTWARE_NAME = "NRL-ACT-MGRAB V1.2"
- MISSION_PHASE_NAME = "LUNAR MAPPING"
- DATA_QUALITY_ID = "N/A"
- TARGET_NAME = "MOON"
- REVOLUTION_NUMBER = 032
- FRAME_SEQUENCE_NUMBER = 0538
- /*** TIME PARAMETERS ***/
- START_TIME = 1994-02-26T21:14:57.857Z
- STOP_TIME = "N/A"
- UNCORRECTED_START_TIME = 1994-02-26T21:14:57.859Z
- SPACECRAFT_CLOCK_START_COUNT = "N/A"
- SPACECRAFT_CLOCK_STOP_COUNT = "N/A"
- PRODUCT_CREATION_TIME = 1994-09-30T19:53:05
- /*** CAMERA RELATED PARAMETERS ***/
- INSTRUMENT_NAME = "ULTRAVIOLET/VISIBLE CAMERA"
- INSTRUMENT_ID = "UVVIS"
- FILTER_NAME = "C"
- CENTER_FILTER_WAVELENGTH = 900 <nm>
- BANDWIDTH = 20 <nm>
- GAIN_MODE_ID = "2"
- MCP_GAIN_MODE_ID = "N/A"
- OFFSET_MODE_ID = "3"
- EXPOSURE_DURATION = 7.9296 <ms>
- LENS_TEMPERATURE = 267.63 <K>
- FOCAL_PLANE_TEMPERATURE = 271.802 <K>
- CRYOCOOLER_TEMPERATURE = "N/A"
- CRYOCOOLER_DURATION = "N/A"
- /*** J2000 (ALSO CALLED EME2000) IS THE INERTIAL REFERENCE SYSTEM ***/
- /*** USED TO SPECIFY OBSERVATIONAL GEOMETRY. LATITUDE AND LONGITUDE ***/
- /*** COORDINATES OF TARGET ARE PLANETOCENTRIC. GEOMETRIC PARAMETERS ***/
- /*** ARE BASED ON BEST AVAILABLE DATA AT TIME OF PRODUCT CREATION. ***/
- /*** REFER TO CLEMENTINE SPICE DATA BASE FOR THE MOST CURRENT ***/
- /*** OBSERVATIONAL GEOMETRY DATA. ***/
- /*** LINE-OF-SITE ON CELESTIAL SPHERE: Angles in <deg> ***/
- RIGHT_ASCENSION = 238.60 <deg>
- DECLINATION = 61.62 <deg>
- TWIST_ANGLE = 300.70 <deg>
- RETICLE_POINT_RA = ( 231.53, 237.89, 245.09, 239.49)
- RETICLE_POINT_DECLINATION = ( 62.77, 58.14, 60.12, 65.09)
- /*** OBSERVATIONAL SEQUENCE INFORMATION ***/
- SEQUENCE_TABLE_ID = "CEQ_03"
- /*** TARGET PARAMETERS: Position <km>, Velocity <km/s> ***/
- SC_TARGET_POSITION_VECTOR = ( -575.6, -954.2, 2049.3)
- SC_TARGET_VELOCITY_VECTOR = ( -1.4890, 0.2342, -0.7037)
- TARGET_CENTER_DISTANCE = 2332.7 <km>
- /*** TARGET WITHIN SENSOR FOV: Angles in <deg> ***/
- SLANT_DISTANCE = 595.3 <km>
- CENTER_LATITUDE = -74.39 <deg>
- CENTER_LONGITUDE = 11.00 <deg>
- HORIZONTAL_PIXEL_SCALE = 0.152 <km>
- VERTICAL_PIXEL_SCALE = 0.152 <km>
- SMEAR_MAGNITUDE = 0.07 <pixels>
- SMEAR_AZIMUTH = 89.80 <deg>
- NORTH_AZIMUTH = 270.51 <deg>
- RETICLE_POINT_LATITUDE = ( -75.08, -75.09, -73.66, -73.64)
- RETICLE_POINT_LONGITUDE = ( 14.76, 7.29, 7.57, 14.39)
- /*** SPACECRAFT POSITION WITH RESPECT TO CENTRAL BODY ***/
- SUB_SPACECRAFT_LATITUDE = -74.38 <deg>
- SUB_SPACECRAFT_LONGITUDE = 10.74 <deg>
- SPACECRAFT_ALTITUDE = 595.3 <km>
- SUB_SPACECRAFT_AZIMUTH = 347.12 <deg>
- /*** SPACECRAFT LOCATION: Position <km>, Velocity <km/s> ***/
- SPACECRAFT_SOLAR_DISTANCE = 148497945.3
- SC_SUN_POSITION_VECTOR = (-137837390.0, 50702496.3, 21948816.2)
- SC_SUN_VELOCITY_VECTOR = (-10.2690,-26.6845,-10.7240)
- /*** VIEWING AND LIGHTING GEOMETRY (SUN ON TARGET) ***/
- SOLAR_DISTANCE = 148498461.7 <km>
- SUB_SOLAR_AZIMUTH = 295.12 <deg>
- SUB_SOLAR_LATITUDE = 1.53 <deg>
- SUB_SOLAR_LONGITUDE = 346.24 <deg>
- INCIDENCE_ANGLE = 77.38 <deg>
- PHASE_ANGLE = 77.21 <deg>
- EMISSION_ANGLE = 0.28 <deg>
- LOCAL_HOUR_ANGLE = 208.08 <deg>
- /*** LIGHTING GEOMETRY FROM SECONDARY SOURCE ***/
- LIGHT_SOURCE_NAME = "EARTH"
- LIGHT_SOURCE_DISTANCE = 362703.5 <km>
- SUB_LIGHT_SOURCE_AZIMUTH = 283.08 <deg>
- SUB_LIGHT_SOURCE_LATITUDE = 6.08 <deg>
- SUB_LIGHT_SOURCE_LONGITUDE = 357.76 <deg>
- LIGHT_SOURCE_INCIDENCE_ANGLE = 81.16 <deg>
- LIGHT_SOURCE_PHASE_ANGLE = 81.04 <deg>
- /*** DESCRIPTION OF OBJECTS CONTAINED IN THE FILE ***/
- OBJECT = IMAGE_HISTOGRAM
- ITEMS = 256
- DATA_TYPE = LSB_INTEGER
- ITEM_BYTES = 4
- END_OBJECT
- OBJECT = BROWSE_IMAGE
- LINES = 36
- LINE_SAMPLES = 48
- SAMPLING_FACTOR = 8
- SAMPLE_TYPE = UNSIGNED_INTEGER
- SAMPLE_BITS = 8
- END_OBJECT
- OBJECT = IMAGE
- ENCODING_TYPE = "CLEM-JPEG-1"
- ENCODING_COMPRESSION_RATIO = 3.05
- LINES = 288
- LINE_SAMPLES = 384
- SAMPLE_TYPE = UNSIGNED_INTEGER
- SAMPLE_BITS = 8
- MAXIMUM = 255
- MINIMUM = 27
- MEAN = 119.269
- STANDARD_DEVIATION = 48.200
- CHECKSUM = 4816272
- END_OBJECT
- END
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- 4.3.1 GEOMETRIC AND VIEWING PARAMETER ASSUMPTIONS
-
- Table 2 lists the computational assumptions for the geometric and
- viewing data provided in the PDS label. There are two coordinate systems
- in use: 1) the celestial reference system used for target and spacecraft
- position and velocity vectors, and camera pointing; and 2) the planetary
- coordinate system for geometry vectors and target location. The
- celestial coordinate system is J2000 (Mean of Earth equator and equinox
- of J2000). The planetary coordinate system is planetocentric.
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- TABLE 2. - COMPUTATIONAL ASSUMPTIONS
-
- <> The mid-point time of observation is used for the geometric
- element computations.
-
- <> Label parameters reflect observed, not true, geometry.
- Therefore, light-time and stellar aberration corrections are
- used as appropriate.
-
- <> The inertial reference frame is J2000 (also called EME2000).
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- <> Latitudes and longitudes are planetocentric.
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- <> The "sub-point" of a body on a target is defined by the surface
- intercept of the body-to-target-center vector. This is not
- the closest point on the body to the observer. This definition
- gives sub-point latitude and longitude that are independent of
- the reference ellipsoid.
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- <> Distances are in km, speeds in km/sec, angles, in degrees,
- angular rates in degrees/sec, unless otherwise noted.
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- <> Angle ranges are 0 to 360 degrees for azimuths and local hour
- angle. Longitudes range from 0 to 360 degrees
- (positive to the East). Latitudes range from -90 to 90
- degrees.
-
- <> Spice kernel files used in the geometric parameters is
- outlined in Appendix I.
-
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- 4.3.2 PDS KEYWORD DEFINITIONS
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- The keywords are listed in the order in which they appear in the example
- label shown above.
-
- PDS_VERSION_ID = PDS3
- The PDS_VERSION_ID data element represents the version
- number of the PDS standards documents that is valid
- when a data product label is created. PDS3 is used for
- the Clementine Data products.
-
- RECORD_TYPE = UNDEFINED
- The record_type element indicates the record format of a
- file. The value UNDEFINED is used in the Clementine EDR
- data products. There are no record attributes associated
- with the file. The file can be thought of as a continuous
- stream of bytes with no record separators.
-
- ^IMAGE_HISTOGRAM = xxxxx <BYTES>
- The image_histogram is a pointer to the image histogram object.
- The value contains the starting byte position in the file.
- (Pointers in the PDS standard assume the first byte in the array
- is byte position 1.)
-
- ^BROWSE_IMAGE = xxxxx <BYTES>
- The parameter is the pointer to the browse image object. The
- value contains the starting byte position in the file. The browse
- image is an uncompressed sub-sampled image of the image contained
- in the IMAGE object.
-
- ^IMAGE = xxxx <BYTES>
- The parameter is the pointer to the image object. The value
- contains the starting byte position in the file.
-
- MISSION_NAME = "DEEP SPACE PROGRAM SCIENCE EXPERIMENT"
- The mission_name element identifies a major planetary mission or
- project. A given planetary mission may be associated with one or
- more spacecraft.
-
- SPACECRAFT_NAME = "CLEMENTINE 1"
- The spacecraft_name element provides the full, unabbreviated
- name of the spacecraft.
-
- DATA_SET_ID = "CLEM1-/L/E/Y-A/B/U/H/L/N-2-EDR-V1.0"
- The data_set_identification element uniquely identifies the
- data sets available on the volume. The EDR collection is made
- up of a single data set.
- Targets include: L=Earth's Moon, E=Earth, Y=Sky,
- Cameras include: A=A star tracker, B=B star tracker,
- U=UV/Vis, H=HiRes, L=longwave infrared,
- N=Nir infrared cameras.
-
- PRODUCT_ID = "msfxxxxy.rrr"
- The product_id data element represents a permanent, unique
- identifier assigned to a data product by its producer.
- The product_id is identical to the name of the EDR image file.
- Where: m = Mission Phase
- P = Prelaunch
- L = Lunar mapping
- E = Earth mapping (LEO and phasing loops)
- A = First earth-moon orbital phasing loops
- B = Second earth-moon orbital phasing loops.
- s = Sensor
- A = Star tracker A
- B = Star tracker B
- U = UV/Vis
- H = Hi-Resolution sensor
- N = Near infrared sensor
- L = Long wavelength infrared sensor
- f = Filter wheel position (A, B, C, D, E, F)
- xxxx = Frame number within revolution
- y = Latitude bin for lunar mapping observations. This
- character signifies a latitude range on the lunar
- surface where the observation was made. The
- center latitude of the image defines the character:
- A = -90 to -80 M = 30 to 40
- B = -80 to -70 N = 40 to 50
- C = -70 to -60 O = 50 to 60
- D = -60 to -50 P = 60 to 70
- E = -50 to -40 Q = 70 to 80
- F = -40 to -30 R = 80 to 90
- G = -30 to -20
- H = -20 to -10 S = "unkown" targets
- I = -10 to 0
- J = 0 to 10 T = Earth observations prior to
- K = 10 to 20 systematic mapping
- L = 20 to 30 U = Sky observations prior to
- systematic mapping
- V = Lunar observations prior to
- systematic mapping
- W = Sky observations after
- systematic mapping
- Y = Earth observations after
- systematic mapping
- Z = Moon Observations after
- systematic mapping
-
-
- rrr = Revolution number (lunar mapping phase)
-
- For non-lunar mapping phase of the mission, the string
- "xxxxy.rrr" takes on a different meaning:
- rrr = Data down load (dump) number within the mission
- phase. The image data is periodically downloaded
- from the spacecraft's solid state data recorder. This
- field specifies a sequence number, starting with 1, of
- a download sequence.
- xxxx = Image sequence number of within the download.
- y = This field contains an alpha character A-Z. The
- letter increases to the next alpha character after
- each 100 images. This letter helps limit the number
- of images that go into each subdirectory on the
- CD-ROM.
-
- ORIGINAL_PRODUCT_ID = "msfxxxxx.rrr"
- During active flight operations, the images were assigned
- temporary file names and product id's. This keyword contains the
- temporary product_id (and file name) given to the image. This field
- should be ignored by all new users of the Clementine data products.
- The format is similar to the PRODUCT_ID. The 'xxxxx' field
- represents a sequence number. There were several problems
- associated with this number. The sequence numbers refer to the
- order in which the data were send down from the spacecraft and
- not the order in which the images were acquired in orbit. Due to
- ground processing problems, the sequence numbers in the original
- product id have been shown to be unreliable.
-
- PRODUCER_INSTITUTION_NAME = "NAVAL RESEARCH LABORATORY"
- Organization responsible for developing the data products. The
- Naval Research Laboratory was responsible for the ground processing
- system for the Clementine Spacecraft.
-
- PRODUCT_TYPE = EDR
- Image data products are identified as an EDR (Experimental Data
- Record). The images are unprocessed and contain all of the
- characteristics and artifacts of "raw" images as acquired by the
- spacecraft.
-
- EDR_SOFTWARE_NAME = "NRL-ACT-MGRAB V1.2"
- Version number of the software system that created the data
- products.
-
- MISSION_PHASE_NAME = "xxxxxxxx"
- Mission Phase names:
- LOW EARTH ORBIT
- LUNAR MAPPING
- EARTH PHASING LOOP A
- EARTH PHASING LOOP B
-
- DATA_QUALITY_ID = "N/A"
- Data Quality indicator. This keyword is reserved for future use.
- As processing of Clementine data proceeds, this keyword may
- be used to describe data quality information. No data quality
- parameters have currently been defined.
-
- TARGET_NAME = "xxxxxx"
-
- Observational target: MOON, EARTH, SKY
-
- The TARGET body is determined by the PICGEO program algorithm:
-
- 1) For each possible target body (a target selection list is
- specified to the PICGEO program), it determines if the body is
- partly or entirely in the camera's field of view.
-
- 2) If only one body is in the field of view, that body is the
- target body.
-
- 3) If multiple bodies are in the field of view, and one or more
- bodies intersect the camera boresight, the closest one to the S/C
- is the target body.
-
- 4) If multiple bodies are in the field of view, and no bodies
- intersect the camera boresight, the closest one to the S/C is the
- target body.
-
- 5) If no bodies are in the camera's field of view, the target
- body is 'SKY'.
-
-
- REVOLUTION_NUMBER = xxx
- The revolution number refers to an observational pass over the
- moon. The revolution number is incremented by one each time the
- spacecraft passes over the south pole prior to the beginning of
- data acquisition. REVOLUTION_NUMBER is used in lieu of orbit
- number because of the way the orbit number was defined by the
- mission. The orbit number is incremented at the equator on the
- sun lit side of the Moon. Thus, the orbit number is changed in
- the middle of an observational pass. This proved to be awkward
- in defining the data acquired by a single pass over the Moon.
-
-
- FRAME_SEQUENCE_NUMBER = xxxxxx
- Sequential frame number of the image acquired during a pass over
- the Moon. For non-lunar mapping phase of mission the sequence
- number refers to the image sequence within a spacecraft memory
- download.
-
- START_TIME = 1994-01-01T03:24:10.444Z
- Time of start of observation. This time refers to the start
- of the integration time of the camera. The value contained in this
- keyword reflects a "corrected time". A software problem onboard
- the spacecraft caused inaccurate times to be attached to an image.
- This value contains the best estimated time of the observation.
-
- STOP_TIME = "N/A"
- This keyword is a required element for PDS data products and is
- included in the label for conformance to PDS standards.
-
- UNCORRECTED_START_TIME = 1994-01-01T03:24:10.444Z
- This keyword contains the time of the observation as sent down
- by the spacecraft. This time may be incorrect due to a software
- problem that existed onboard the spacecraft. The difference between
- the START_TIME and the UNCORRECTED_START_TIME is the estimated
- correction that was applied to the START_TIME.
-
- SPACECRAFT_CLOCK_START_COUNT = "N/A"
- Clock count of the spacecraft computer at the start of the image
- observation. The computer clock count was not available for
- the data products. This keyword is a required element for PDS
- data products and is included for conformance to the standard.
-
- SPACECRAFT_CLOCK_STOP_COUNT = "N/A"
- Clock count of the spacecraft computer at the end of the image
- observation. The computer clock count was not available for
- the data products. This keyword is a required element for PDS
- data products and is included for conformance to the standard.
-
- PRODUCT_CREATION_TIME = 1994-02-26T21:17:06
- Date and time for which the EDR product was created.
-
- INSTRUMENT_NAME = "xxxxxxxx"
- Name of camera:
- NEAR INFRARED CAMERA
- LIDAR HIGH-RESOLUTION IMAGER
- ULTRAVIOLET/VISIBLE CAMERA
- LONG WAVELENGTH INFRARED CAMERA
- A STAR TRACKER CAMERA
- B STAR TRACKER CAMERA
-
- INSTRUMENT_ID = "xxxxxx"
- A-STAR (A star tracker camera)
- B-STAR (B star tracker camera)
- HIRES (HiResolution camera)
- UVVIS (Ultra Violet/Visible camera)
- LWIR (Long wavelength infrared camera)
- NIR (Near Infrared camera)
-
- FILTER_NAME = "xx"
- Filter name. The filter names are assigned alpha letters
- to designate the filter position. The CENTER_FILTER_WAVELENGTH
- parameter defines the central wavelength of the filter. Values
- for each camera are shown, center wavelength and bandwidth are
- given in nanometers.
- Camera/Filter/Center/Bandwidth
- UVVIS A - 415 40
- B - 750 10
- C - 900 20
- D - 950 30
- E - 1000 30
- F - 650 550 (BROADBAND FILTER)
- NIR A - 1100 60
- B - 1250 60
- C - 1500 60
- D - 2000 60
- E - 2600 60
- F - 2780 60
- HIRES A - 415 40
- B - 560 50
- C - 650 50
- D - 750 50
- E - 650 350 (BROADBAND FILTER)
- F - N/A N/A (OPAQUE FILTER)
- LWIR A - 8750 1500
- A-STAR A - N/A N/A (BROADBAND, NO FILTER WHEEL)
- B-STAR A - N/A N/A (BROADBAND, NO FILTER WHEEL)
-
- CENTER_FILTER_WAVELENGTH = xxxx <nm>
- The center_filter_wavelength element provides the mid point
- wavelength value between the minimum and maximum instrument
- filter wavelength values.
-
- BANDWIDTH = xxxx <nm>
- The bandwidth element provides a measure of the spectral
- width of a filter (nanometers). For a root-mean-square detector
- this is the effective bandwidth of the filter i.e., the full
- width of an ideal square filter having a flat response over the
- bandwidth and zero response elsewhere.
-
- GAIN_MODE_ID = "xxx"
- Gain mode of the Camera. Mode that defines the sensitivity of
- the detector.
-
- MCP_GAIN_MODE_ID = "xxx"
- Micro Channel Plate (MCP) gain mode. This keyword is applicable
- only to the HIRES camera.
-
- OFFSET_MODE_ID = "xxx"
- Mode specifies the analog value that is subtracted from the
- video signal prior to the Analog/digital converters.
-
- EXPOSURE_DURATION = xxxx <ms>
- Exposure duration (integration time) of the image observation
- expressed in milliseconds.
-
- LENS_TEMPERATURE = xxx.xx <K>
- Temperature of the camera lens in degrees Kelvin at the
- time the observation was made. This parameter is "N/A"
- for the HIRES camera because not temperature sensor was
- available at the lens.
-
- FOCAL_PLANE_TEMPERATURE = xxx.xx <K>
- Temperature of the focal plane array in degrees Kelvin
- at the time the observation was made.
-
- CRYOCOOLER_TEMPERATURE = xxx.xx <K>
- Temperature of the Cryocooler at time observation was made.
- This field applicable only to the NIR and LWIR cameras.
-
- CRYOCOOLER_DURATION = xxxx <s>
- Time that has transpired since the cryocooler was turned on.
- This field applicable only to the NIR and LWIR cameras.
-
- RIGHT_ASCENSION = xxxx.xxx <deg>
- The right ascension of the camera boresight. The values are
- specified relative to the J2000 inertial reference frame.
-
- DECLINATION = xxxx.xxx <deg>
- The declination of the camera boresight. The values are
- specified relative to the J2000 inertial reference frame.
-
- TWIST_ANGLE = xxxx.xxx <deg>
- The element TWIST_ANGLE provides the angle of rotation about
- optical axis relative to celestial coordinates. The
- right ascension, declination, and twist angles define the
- pointing direction of the scan platform.
-
- RETICLE_POINT_RA = (xxxx.xx, xxxx.xx, xxxx.xx, xxxx.xx)
- RETICLE_POINT_DECLINATION = (xxxx.xx, xxxx.xx, xxxx.xx, xxxx.xx)
- These parameters refer to the right ascension and declination
- of the principle points of the camera. For the Clementine
- cameras the principle points are defined as the upper
- left pixel of the camera (line 1, sample 1), the upper right
- pixel (line 1 , last sample), lower left (last line, sample 1),
- and lower right(last line, last sample). The reticule point
- RA and DEC are expressed in degrees.
-
- SEQUENCE_TABLE_ID = "xxx"
- This parameter contains the image acquisition sequence code that
- specifies the camera/filter image sequencing for a set of
- observations. The ID indicates the order in which cameras are
- shuttered and the order for which filters are used in the
- set of observations. The sequence tables will be defined in the
- ancillary CD-ROM data products that accompany the Clementine EDR
- archive.
-
- SC_TARGET_POSITION_VECTOR = (xxxxxxxx.xx, yyyyyyyyyy.yy, zzzzzzzz.zz)
- x-, y-, and z- components of the position vector from observer to
- target center expressed in J2000 coordinates, and corrected for
- light time and stellar aberration, evaluated at epoch at which
- image was taken. Units are expressed in kilometers.
-
- SC_TARGET_VELOCITY_VECTOR = (xxxxxxx.xx, yyyyyyyy.yy, zzzzzxxxz.zz)
- x-, y-, and z- components of velocity vector of target relative to
- observer, expressed in J2000 coordinates, and corrected for light
- time, evaluated at epoch at which image was taken. Units
- are expressed in kilometers/second.
-
- TARGET_CENTER_DISTANCE = xxxx.xxx <km>
- The target_center_distance element provides the distance
- between the spacecraft and the center of the named target,
- expressed in kilometers.
-
-
- SLANT_DISTANCE = xxxx.xxx <km>
- Distance from spacecraft to camera boresight intercept point on
- surface expressed in kilometers.
-
- CENTER_LATITUDE = xxxx.xxx <deg>
- CENTER_LONGITUDE = xxxx.xxx <deg>
- Planetocentric latitude and longitude of camera boresight intercept
- point.
-
- HORIZONTAL_PIXEL_SCALE = xxxxx.xxxx <km>
- VERTICAL_PIXEL_SCALE = xxxxx.xxxx <km>
- Distance, measured along horizontal and vertical directions, along
- target surface between intercept points defined by centers of left
- and right edges of pixel-sized region in FOV centered at camera
- boresight. Defined only when boresight intercepts surface. Units
- are in kilometers.
-
- SMEAR_MAGNITUDE = xxxx.xx <pixels>
- Norm of velocity vector of camera boresight intercept point
- projected on target, multiplied by the exposure duration
- with the scale of the image factored to obtain the smear
- in pixels. Spacecraft rotation is taken into account. (Units
- are in pixels.)
-
- SMEAR_AZIMUTH = xxxxx.xx <deg>
- Azimuth of smear velocity vector. The reference line for the angle
- extends from the center of the image to the right edge of the
- image. The angle increases in the clock-wise direction. The angle
- is measured to the "image" of the smear velocity vector in the
- camera's focal plane. This image is computed by orthogonally
- projecting the smear vector onto the image plane and then applying
- whatever transformations are required to orient the result properly
- with respect to the image. The specific transformations to be
- performed are given by the camera's I-kernel.
-
- NORTH_AZIMUTH = xxxxx.xxx <deg>
- Analogs to smear azimuth, but applies to the target north pole
- direction vector.
-
- RETICLE_POINT_LATITUDE = (xxxx.xx, xxxx.xx, xxxx.xx, xxxx.xx)
- RETICLE_POINT_LONGITUDE = (xxxx.xx, xxxx.xx, xxxx.xx, xxxx.xx)
- Latitudes and longitudes of the surface intercept points of the
- principle points of the camera. (see RETICLE_POINT_RA for
- definition of the reticule points for Clementine. The units
- are expressed in degrees.
-
- SUB_SPACECRAFT_LATITUDE = xxxx.xxx <deg>
- SUB_SPACECRAFT_LONGITUDE= xxxx.xxx <deg>
- Planetocentric latitude and longitude of spacecraft-to-centerbody-
- center surface intercept vector. These parameters and the
- SPACECRAFT_ALTITUDE, SUB_SPACECRAFT_AZIMUTH parameters described
- below are relative to the central body for which the spacecraft
- is orbiting and not the target of the observation.
-
- SPACECRAFT_ALTITUDE = xxxxxxx.xxx <km>
- Altitude of spacecraft above reference ellipsoid. Distance is
- measured to closest point on ellipsoid.
-
- SUB_SPACECRAFT_AZIMUTH = xxxxxxxx.xxx <deg>
- Azimuth angle of sub-spacecraft point in image. Method of
- measurement is same as for smear azimuth (see above).
-
- SPACECRAFT_SOLAR_DISTANCE = xxxxxxxx.xxxx <km>
- Analogous to "target center distance," but Sun replaces target body
- in computation.
-
- SC_SUN_POSITION_VECTOR = (xxxxxxx.xx, yyyyyy.yy, zzzzzzz.zz)
- x-, y-, and z- components of position vector from observer to sun,
- center expressed in J2000 coordinates, and corrected for light time
- and stellar aberration, evaluated at epoch at which image was
- taken. Units are kilometers.
-
- SC_SUN_VELOCITY_VECTOR = (xxxxxxxx.xx, yyyyyyy.yy, zzzzzzz.zz)
- x-, y-, and z- components of velocity vector of sun relative to
- observer, expressed in J2000 coordinates, and corrected for light
- time, evaluated at epoch at which image was taken. Units are
- kilometers/second.
-
- SOLAR_DISTANCE = xxxxxxxx.xx <km>
- Distance from target body center to Sun. The Sun position used is
- that described above.
-
- SUB_SOLAR_AZIMUTH = xxxxx.xx <deg>
- Azimuth of the apparent sub-solar point, as seen by the spacecraft.
- This point is the surface intercept of the target-center-to-Sun
- vector, evaluated at the camera epoch minus one-way light time from
- target to spacecraft at that epoch spacecraft at that epoch.
- Azimuth is measured as described above. Target body position
- relative to the spacecraft is corrected for light-time and stellar
- aberration. Target body orientation is corrected for light-time.
-
- SUB_SOLAR_LATITUDE = xxxx.xx <deg>
- SUB_SOLAR_LONGITUDE = xxxx.xx <deg>
- Planetocentric latitude and longitude of the apparent sub-solar
- point.
-
- INCIDENCE_ANGLE = xxxx.xx <deg>
- PHASE_ANGLE = xxxx.xx <deg>
- EMISSION_ANGLE = xxxx.xx <deg>
- These angles are measured at the camera boresight intercept point.
- The target-Sun vector is the same as that used in the sub-solar
- point computation. The spacecraft-target vector is the same as
- that used in the camera boresight intercept computation.
- The INCIDENCE ANGLE is the angle between the target-Sun vector and
- the local vertical vector at the boresight intercept.
- The PHASE ANGLE is measured between the boresight intercept-to-Sun
- vector and the negative of the boresight vector.
- The EMISSION ANGLE is measured between the negative of the
- boresight vector and the local vertical vector at the boresight
- intercept.
-
- LOCAL_HOUR_ANGLE = xxxx.xx <deg>
- The angle from the negative of the target-body-to-Sun vector to the
- projection of the negative of the spacecraft-to-target vector onto
- the target's instantaneous orbital plane. Both vectors are
- computed as in the sub-spacecraft point computation. The angle is
- measured in a counterclockwise direction when viewed from North of
- the ecliptic plane.
-
- LIGHT_SOURCE_NAME = "xxxxx"
- Name of secondary light source.
- EARTH when making lunar observations
- MOON when making earth observations
-
- LIGHT_SOURCE_DISTANCE = xxxxxx.xxx <km>
- Distance from target body center and secondary light source center.
-
- SUB_LIGHT_SOURCE_AZIMUTH = xxxx.xx <deg>
- Analogs to sub solar azimuth but using secondary light source
- instead of sun.
-
- SUB_LIGHT_SOURCE_LATITUDE = xxxx.xx <deg>
- SUB_LIGHT_SOURCE_LONGITUDE = xxxx.xx <deg>
- Analogs to sub solar latitude and longitude but using secondary
- light source instead of sun.
-
- LIGHT_SOURCE_INCIDENCE_ANGLE = xxxx.xx <deg>
- LIGHT_SOURCE_PHASE_ANGLE = xxxx.xx <deg>
- Analogs to incidence and phase angles but using secondary light
- source instead of sun.
-
- OBJECT = IMAGE_HISTOGRAM
- ITEMS = 256
- DATA_TYPE = LSB_INTEGER
- ITEM_BYTES = 8
- END_OBJECT
- These keywords describe the histogram object.
-
- OBJECT = BROWSE_IMAGE
- LINES = xxxx
- LINE_SAMPLES = xxxx
- SAMPLING_FACTOR = 8
- SAMPLE_TYPE = UNSIGNED_INTEGER
- SAMPLE_BITS = 8
- END_OBJECT
- These keywords describe the browse image object. The browse
- image is an uncompressed subsampled version of the image.
- SAMPLING_FACTOR refers to the subsampling of every N-th pixel
- in the line and sample direction. The pixel values in the
- NxN array are averaged before subsampling.
-
- OBJECT = IMAGE
- ENCODING_TYPE = "CLEM-JPEG-0"
- ENCODING_COMPRESSION_RATIO = xxxx.xx
- LINES = xxxx
- LINE_SAMPLES = xxxx
- SAMPLE_TYPE = UNSIGNED_INTEGER
- SAMPLE_BITS = 8
- MAXIMUM = xxx
- MINIMUM = xxx
- MEAN = xxx
- STANDARD_DEVIATION = xxxx.xxx
- CHECKSUM = xxxxxxxx
- END_OBJECT
- END
-
- These keywords describe the image object. Data are in a compressed
- form, the huffman table, and DCT coefficients are stored in the
- object. Access to this object is through the decompression software.
- MINIMUM, MAXIMUM, MEAN, and STANDARD_DEVIATION refers to the DN values
- of the image array. The CHECKSUM parameter refers to the sum of the
- bytes in the object in compressed form. The ENCODING_COMPRESSION_RATIO
- specifies the compression factor of the data. There are three permitted
- values for the ENCODING_TYPE: "N/A" indicates the image was not
- compressed on the spacecraft and so the data are not in a compressed
- format. "CLEM-JPEG-0" and "CLEM-JPEG-1" indicates the data were
- compressed onboard the spacecraft and the data are stored in a
- compressed form. See Appendix II for a description of the two data
- decompression forms.
-
-
-
- APPENDIX I - SPICE Kernel Files Used In Clementine Data Products
-
- The following SPICE kernel files were inputs to the Picture Geometry
- program (PICGEO) used to compute the geometric quantities found in the
- PDS image labels and the Image Index files (IMGINDX.TAB) archived in
- this volume set. Improvements to some of these fundamental ancillary
- data will be made as further analysis of Clementine data continues, so
- the geometric quantities found in the labels should not be used for
- precision science data analyses.
-
- clemdef.bsp:
- Clementine spacecraft trajectory file. The ephemeris in this file was
- produced by the Naval Research Laboratory, based on orbit solutions
- provided by the Goddard Space Flight Center Flight Dynamics Facility.
- The NRL data, given in the SERF form, were converted to the SPICE SPK
- format using the serf2spk utility provided by NAIF.
-
- de245.bsp:
- JPL planetary and lunar ephemeris file, in SPICE SPK format.
-
- clemdef.bck:
- Clementine spacecraft orientation file. The pointing in this file is
- discrete, stored every 5 seconds during periods of imaging and every 60
- seconds during periods of non-imaging. There are gaps in coverage. The
- pointing data in this file were NOT corrected for known discrepancies
- between A- and B- star tracker alignment. The data are in SPICE CK
- format.
-
- dspse002.tsc:
- Clementine spacecraft clock coefficients file, in SPICE SCLK format.
-
- pck00003.tpc:
- Planetary constants kernel file, in the SPICE text-PcK format. This was
- used for modeling the size, shape and orientation of the earth, and the
- size and shape (not orientation) of the moon.
-
- de245l.bpc:
- Lunar orientation model using numerically integrated physical
- librations. This model uses the mean earth axes, not the principal axes
- used in the IAU publications from which the pck00003.tpc data were
- obtained. The difference between these two models is thought to be
- several hundred meters.
-
- naif0003.tls:
- NAIF leapseconds kernel file, used for converting between Universal Time
- Coordinated (UTC) and Barycentric Dynamical Time (TDB, also called
- Ephemeris Time, or ET).
-
- The seven instrument kernel files below contain the instrument mounting
- alignment relative to the spacecraft, and the following instrument
- geometric parameters: focal length, focal plane dimension, pixel size,
- and the coefficient of radially symmetric optical distortion. ASTAR and
- BSTAR are the A- and B- star trackers that provided spacecraft attitude
- reference as well as scientific images.
-
- hires005.ti: HIRES instrument kernel file.
-
- uvvis005.ti: UVVIS instrument kernel file.
-
- lwir005.ti: LWIR instrument kernel file.
-
- nir005.ti: NIR instrument kernel file.
-
- lidar002.ti: LIDAR instrument kernel file.
-
- astar004.ti: ASTAR instrument kernel file.
-
- bstar004.ti: BSTAR instrument kernel file.
-
-
-
-
-
- APPENDIX II - Data Compression Coefficients
-
- The Clementine Data Handling Unit (DHU) permits 4 data compression
- parameter sets to be loaded at any given time, i.e. Sets 0-3. These data
- compression parameter sets are used to drive the MATRA compression chip.
- This chip permits the real time compression of images using a
- compression scheme that is similar to the JPEG standard but not
- identical.
-
- Each data compression parameter set is composed of:
- TabQ table - which contains 64 values
- Huffman Table - which contains the huffman encoding constants,
- TabF vector - which contains a vector with 16 possible
- scaling constants to use.
-
- During the Clementine mission:
-
- <> Set 0 corresponded to MATRA's default data compression parameter set.
- The ENCODING_TYPE = "CLEM-JPEG-0" signifies Set 0 parameters
- were used in the compression.
-
- <> Set 1 corresponded to a flat quantization table for all frequencies.
- This is the set that was primarily used during the whole mission.
- The ENCODING_TYPE = "CLEM-JPEG-1" signifies Set 1 parameters
- were used in the compression.
-
- <> Sets 2-3 were identical to Set 1. If needed they were going to be
- modified during flight. After a number of quick studies, using
- data from the first few orbits around the Moon, it was decided that
- this was not needed.
-
-
- BASIC DIFFERENCE BETWEEN STANDARD JPEG AND THE MATRA IMPLEMENTATION
-
- Standard JPEG Frequency Quantization Scheme
-
- In the standard JPEG algorithm the frequency coefficients X(u,v) [using
- here a notation similar to the one used in the English version of the
- MATRA chip manual] are transformed by the following equation before the
- frequency coefficients are Huffman encoded:
-
- Xq(u,v) = int9bit[X(u,v)/q(u,v)] (1)
-
-
- where,
-
- X(u,v) is a 12 bit signed number representing the DCT coefficient
- at the frequency indices (u,v).
- q(u,v) quantization table coefficient at the frequency index (u,v),
- this is an 8 bit positive number (1-255).
-
- In the decompression stage the value of X(u,v) is reconstructed from the
- following equation:
-
- Xr(u,v) = int9bit[X(u,v)/q(u,v)].q(u,v)
-
- Equation (1) is a lossy operation due to the integer truncation.
-
- For the set of lunar test images we have been working with a small value
- of q(u,v), say q(u,v)=1, results in compression ratios close to the
- original CLEMENTINE baseline requirement of 4 to 1. Hence we were
- particular interested in looking at what is the smaller value of q'(u,v)
- that can be represented by the MATRA chip hardware.
-
-
- MATRA's Implementations of the JPEG Frequency Quantization Scheme
-
- In the MATRA chip the desired quantization coefficient factor, q(u,v),
- is approximated in hardware using an effective q'(u,v), i.e.
-
- Xq'(u,v) = int9bit[X(u,v)/q'(u,v)]
- = int9bit[int8bit[ ((TABF*TABQ(u,v))/64))/4094)).X(u,v)] (2)
-
-
- where:
- TABF is an 8 bit positive quantity used for scaling purposes,
- TABQ (u,v) is a derived 8 bit positive number defined by
-
- TABQ=int8bit[255*10/q(u,v)]
-
-
- In other words, in the MATRA chip a desired JPEG quantization
- coefficient value, q(u,v), is implemented as an effective q'(u,v) value
- of:
-
- q'(u,v)= 4094/(int8bit[TABF.TABQ/64])
- = 4094/(int8bit[(TABF/64).int8bit[(255*10)/q(u,v)])
- >= 4
-
-
- Notice that since TABF and TABQ are 8 bit positive numbers it follows
- that 4 <= q'(u,v).
-
- Hence, the minimum effective quantization table coefficient value
- achievable in the MATRA chip is four.
-
- The following Table summarizes the data compression parameter sets
- loaded to the Clementine Spacecraft during Mission Operations. Note
- that only set 0 and 1 are distinct.
-
-
-
- TabF Set0 Set1 Set2 Set3
- TABF(00) FFh FFh FFh FFh
- TABF(01) FFh FFh FFh FFh
- TABF(02) FFh FFh FFh FFh
- TABF(03) FFh FFh FFh FFh
- TABF(04) BDh BDh BDh BDh
- TABF(05) 8dh 8dh 8dh 8dh
- TABF(06) 6Fh 6Fh 6Fh 6Fh
- TABF(07) 59h 59h 59h 59h
- TABF(08) 4Bh 4Bh 4Bh 4Bh
- TABF(09) 3fh 3fh 3fh 3fh
- TABF(10) 37h 37h 37h 37h
- TABF(11) 30h 30h 30h 30h
- TABF(12) 2Bh 2Bh 2Bh 2Bh
- TABF(13) 2bh 2bh 2bh 2bh
- TABF(14) 26h 26h 26h 26h
- TABF(15) 23h 23h 23h 23h
-
- TabQ Value
- Q Set0 S1 S2 S3
- Q(0,0) 9Fh FF FF FF
- Q(0,1) D4h FF FF FF
- Q(0,2) B6h FF FF FF
- Q(0,3) B6h FF FF FF
- Q(0,4) 8Eh FF FF FF
- Q(0,5) 6Ah FF FF FF
- Q(0,6) 34h FF FF FF
- Q(0,7) 23h FF FF FF
- Q(1,0) E8h FF FF FF
- Q(1,1) D4h FF FF FF
- Q(1,2) C4h FF FF FF
- Q(1,3) 96h FF FF FF
- Q(1,4) 74h FF FF FF
- Q(1,5) 49h FF FF FF
- Q(1,6) 28h FF FF FF
- Q(1,7) 1Ch FF FF FF
- Q(2,0) FFh FF FF FF
- Q(2,1) B6h FF FF FF
- Q(2,2) 9Fh FF FF FF
- Q(2,3) 74h FF FF FF
- Q(2,4) 45h FF FF FF
- Q(2,5) 2Eh FF FF FF
- Q(2,6) 21h FF FF FF
- Q(2,7) 1Bh FF FF FF
- Q(3,0) 9Fh FF FF FF
- Q(3,1) 86h FF FF FF
- Q(3,2) 6Ah FF FF FF
- Q(3,3) 58h FF FF FF
- Q(3,4) 2Eh FF FF FF
- Q(3,5) 28h FF FF FF
- Q(3,6) 1Dh FF FF FF
- Q(3,7) 1Ah FF FF FF
- Q(4,0) 6Ah FF FF FF
- Q(4,1) 62h FF FF FF
- Q(4,2) 40h FF FF FF
- Q(4,3) 32h FF FF FF
- Q(4,4) 26h FF FF FF
- Q(4,5) 1Fh FF FF FF
- Q(4,6) 19h FF FF FF
- Q(4,7) 17h FF FF FF
- Q(5,0) 40h FF FF FF
- Q(5,1) 2Ch FF FF FF
- Q(5,2) 2Dh FF FF FF
- Q(5,3) 1Dh FF FF FF
- Q(5,4) 17h FF FF FF
- Q(5,5) 19h FF FF FF
- Q(5,6) 15h FF FF FF
- Q(5,7) 1Ah FF FF FF
- Q(6,0) 32h FF FF FF
- Q(6,1) 2Ah FF FF FF
- Q(6,2) 25h FF FF FF
- Q(6,3) 20h FF FF FF
- Q(6,4) 19h FF FF FF
- Q(6,5) 17h FF FF FF
- Q(6,6) 15h FF FF FF
- Q(6,7) 19h FF FF FF
- Q(7,0) 2Ah FF FF FF
- Q(7,1) 2Eh FF FF FF
- Q(7,2) 2Eh FF FF FF
- Q(7,3) 29h FF FF FF
- Q(7,4) 21h FF FF FF
- Q(7,5) 1Ch FF FF FF
- Q(7,6) 19h FF FF FF
- Q(7,7) 1Ah FF FF FF
-
-
- Huf Tab Set0 Set1 Set2 Set3
- VLC(00) 04h 04h 04h 04h
- VLC(01) 05h 05h 05h 05h
- VLC(02) 00h 00h 00h 00h
- VLC(03) 00h 00h 00h 00h
- VLC(04) 00h 00h 00h 00h
- VLC(05) 00h 00h 00h 00h
- VLC(06) 00h 00h 00h 00h
- VLC(07) 00h 00h 00h 00h
- VLC(08) 00h 00h 00h 00h
- VLC(09) 00h 00h 00h 00h
- VLC(10) 00h 00h 00h 00h
- VLC(11) 00h 00h 00h 00h
- VLC(12) 00h 00h 00h 00h
- VLC(13) 00h 00h 00h 00h
- VLC(14) 00h 00h 00h 00h
- VLC(15) 00h 00h 00h 00h
- VLC(16) 00h 00h 00h 00h
- VLC(17) 00h 00h 00h 00h
- VLC(18) 00h 00h 00h 00h
- VLC(19) 00h 00h 00h 00h
- VLC(20) 00h 00h 00h 00h
- VLC(21) 00h 00h 00h 00h
- VLC(22) 00h 00h 00h 00h
- VLC(23) 00h 00h 00h 00h
- VLC(24) 00h 00h 00h 00h
- VLC(25) 00h 00h 00h 00h
- VLC(26) 00h 00h 00h 00h
- VLC(27) 00h 00h 00h 00h
- VLC(28) 00h 00h 00h 00h
- VLC(29) 00h 00h 00h 00h
- VLC(30) 10h 10h 10h 10h
- VLC(31) 2Fh 2Fh 2Fh 2Fh
- VLC(32) 02h 02h 02h 02h
- VLC(33) 00h 00h 00h 00h
- VLC(34) 04h 04h 04h 04h
- VLC(35) 03h 03h 03h 03h
- VLC(36) 05h 05h 05h 05h
- VLC(37) 1Bh 1Bh 1Bh 1Bh
- VLC(38) 06h 06h 06h 06h
- VLC(39) 17h 17h 17h 17h
- VLC(40) 06h 06h 06h 06h
- VLC(41) 37h 37h 37h 37h
- VLC(42) 07h 07h 07h 07h
- VLC(43) 2Fh 2Fh 2Fh 2Fh
- VLC(44) 07h 07h 07h 07h
- VLC(45) 6Fh 6Fh 6Fh 6Fh
- VLC(46) 08h 08h 08h 08h
- VLC(47) 9Fh 9Fh 9Fh 9Fh
- VLC(48) 08h 08h 08h 08h
- VLC(49) 5Fh 5Fh 5Fh 5Fh
- VLC(50) 09h 09h 09h 09h
- VLC(51) 1Fh 1Fh 1Fh 1Fh
- VLC(52) 09h 09h 09h 09h
- VLC(53) 9Fh 9Fh 9Fh 9Fh
- VLC(54) 09h 09h 09h 09h
- VLC(55) 5Fh 5Fh 5Fh 5Fh
- VLC(56) 0Ah 0Ah 0Ah 0Ah
- VLC(57) 5Fh 5Fh 5Fh 5Fh
- VLC(58) 0Bh 0Bh 0Bh 0Bh
- VLC(59) 5Fh 5Fh 5Fh 5Fh
- VLC(60) 0Fh 0Fh 0Fh 0Fh
- VLC(61) 03h 03h 03h 03h
- VLC(62) 10h 10h 10h 10h
- VLC(63) AFh AFh AFh AFh
- VLC(64) 02h 02h 02h 02h
- VLC(65) 02h 02h 02h 02h
- VLC(66) 06h 06h 06h 06h
- VLC(67) 27h 27h 27h 27h
- VLC(68) 08h 08h 08h 08h
- VLC(69) 1Fh 1Fh 1Fh 1Fh
- VLC(70) 09h 09h 09h 09h
- VLC(71) EFh EFh EFh EFh
- VLC(72) 0Ah 0Ah 0Ah 0Ah
- VLC(73) 1Fh 1Fh 1Fh 1Fh
- VLC(74) 0Ah 0Ah 0Ah 0Ah
- VLC(75) 9Fh 9Fh 9Fh 9Fh
- VLC(76) 0Bh 0Bh 0Bh 0Bh
- VLC(77) 1Fh 1Fh 1Fh 1Fh
- VLC(78) 0Bh 0Bh 0Bh 0Bh
- VLC(79) 9Fh 9Fh 9Fh 9Fh
- VLC(80) 0Ch 0Ch 0Ch 0Ch
- VLC(81) EFh EFh EFh EFh
- VLC(82) 10h 10h 10h 10h
- VLC(83) 7Dh 7Dh 7Dh 7Dh
- VLC(84) 10h 10h 10h 10h
- VLC(85) E3h E3h E3h E3h
- VLC(86) 10h 10h 10h 10h
- VLC(87) 0Bh 0Bh 0Bh 0Bh
- VLC(88) 10h 10h 10h 10h
- VLC(89) 9Bh 9Bh 9Bh 9Bh
- VLC(90) 10h 10h 10h 10h
- VLC(91) 47h 47h 47h 47h
- VLC(92) 10h 10h 10h 10h
- VLC(93) D7h D7h D7h D7h
- VLC(94) 10h 10h 10h 10h
- VLC(95) 6Fh 6Fh 6Fh 6Fh
- VLC(96) 03h 03h 03h 03h
- VLC(97) 01h 01h 01h 01h
- VLC(98) 07h 07h 07h 07h
- VLC(99) 4Fh 4Fh 4Fh 4Fh
- VLC(100) 0Ah 0Ah 0Ah 0Ah
- VLC(101) EFh EFh EFh EFh
- VLC(102) 0Bh 0Bh 0Bh 0Bh
- VLC(103) EFh EFh EFh EFh
- VLC(104) 10h 10h 10h 10h
- VLC(105) 69h 69h 69h 69h
- VLC(106) 10h 10h 10h 10h
- VLC(107) 79h 79h 79h 79h
- VLC(108) 10h 10h 10h 10h
- VLC(109) 65h 65h 65h 65h
- VLC(110) 10h 10h 10h 10h
- VLC(111) 75h 75h 75h 75h
- VLC(112) 10h 10h 10h 10h
- VLC(113) 6Dh 6Dh 6Dh 6Dh
- VLC(114) 10h 10h 10h 10h
- VLC(115) FDh FDh FDh FDh
- VLC(116) 10h 10h 10h 10h
- VLC(117) 13h 13h 13h 13h
- VLC(118) 10h 10h 10h 10h
- VLC(119) 8Bh 8Bh 8Bh 8Bh
- VLC(120) 10h 10h 10h 10h
- VLC(121) 5Bh 5Bh 5Bh 5Bh
- VLC(122) 10h 10h 10h 10h
- VLC(123) C7h C7h C7h C7h
- VLC(124) 10h 10h 10h 10h
- VLC(125) 37h 37h 37h 37h
- VLC(126) 10h 10h 10h 10h
- VLC(127) EFh EFh EFh EFh
- VLC(128) 04h 04h 04h 04h
- VLC(129) 0Dh 0Dh 0Dh 0Dh
- VLC(130) 09h 09h 09h 09h
- VLC(131) 6Fh 6Fh 6Fh 6Fh
- VLC(132) 0Ch 0Ch 0Ch 0Ch
- VLC(133) 6Fh 6Fh 6Fh 6Fh
- VLC(134) 10h 10h 10h 10h
- VLC(135) F1h F1h F1h F1h
- VLC(136) 10h 10h 10h 10h
- VLC(137) E9h E9h E9h E9h
- VLC(138) 10h 10h 10h 10h
- VLC(139) F9h F9h F9h F9h
- VLC(140) 10h 10h 10h 10h
- VLC(141) E5h E5h E5h E5h
- VLC(142) 10h 10h 10h 10h
- VLC(143) F5h F5h F5h F5h
- VLC(144) 10h 10h 10h 10h
- VLC(145) EDh EDh EDh EDh
- VLC(146) 10h 10h 10h 10h
- VLC(147) 03h 03h 03h 03h
- VLC(148) 10h 10h 10h 10h
- VLC(149) 93h 93h 93h 93h
- VLC(150) 10h 10h 10h 10h
- VLC(151) 4Bh 4Bh 4Bh 4Bh
- VLC(152) 10h 10h 10h 10h
- VLC(153) DBh DBh DBh DBh
- VLC(154) 10h 10h 10h 10h
- VLC(155) 27h 27h 27h 27h
- VLC(156) 10h 10h 10h 10h
- VLC(157) B7h B7h B7h B7h
- VLC(158) 10h 10h 10h 10h
- VLC(159) 1Fh 1Fh 1Fh 1Fh
- VLC(160) 05h 05h 05h 05h
- VLC(161) 0Bh 0Bh 0Bh 0Bh
- VLC(162) 0Bh 0Bh 0Bh 0Bh
- VLC(163) 6Fh 6Fh 6Fh 6Fh
- VLC(164) 10h 10h 10h 10h
- VLC(165) 91h 91h 91h 91h
- VLC(166) 10h 10h 10h 10h
- VLC(167) 09h 09h 09h 09h
- VLC(168) 10h 10h 10h 10h
- VLC(169) 19h 19h 19h 19h
- VLC(170) 10h 10h 10h 10h
- VLC(171) 05h 05h 05h 05h
- VLC(172) 10h 10h 10h 10h
- VLC(173) 15h 15h 15h 15h
- VLC(174) 10h 10h 10h 10h
- VLC(175) 0Dh 0Dh 0Dh 0Dh
- VLC(176) 10h 10h 10h 10h
- VLC(177) 1Dh 1Dh 1Dh 1Dh
- VLC(178) 10h 10h 10h 10h
- VLC(179) 83h 83h 83h 83h
- VLC(180) 10h 10h 10h 10h
- VLC(181) 53h 53h 53h 53h
- VLC(182) 10h 10h 10h 10h
- VLC(183) CBh CBh CBh CBh
- VLC(184) 10h 10h 10h 10h
- VLC(185) 3Bh 3Bh 3Bh 3Bh
- VLC(186) 10h 10h 10h 10h
- VLC(187) A7h A7h A7h A7h
- VLC(188) 10h 10h 10h 10h
- VLC(189) 77h 77h 77h 77h
- VLC(190) 10h 10h 10h 10h
- VLC(191) 9Fh 9Fh 9Fh 9Fh
- VLC(192) 06h 06h 06h 06h
- VLC(193) 07h 07h 07h 07h
- VLC(194) 10h 10h 10h 10h
- VLC(195) 21h 21h 21h 21h
- VLC(196) 10h 10h 10h 10h
- VLC(197) 51h 51h 51h 51h
- VLC(198) 10h 10h 10h 10h
- VLC(199) 89h 89h 89h 89h
- VLC(200) 10h 10h 10h 10h
- VLC(201) 99h 99h 99h 99h
- VLC(202) 10h 10h 10h 10h
- VLC(203) 85h 85h 85h 85h
- VLC(204) 10h 10h 10h 10h
- VLC(205) 95h 95h 95h 95h
- VLC(206) 10h 10h 10h 10h
- VLC(207) 8Dh 8Dh 8Dh 8Dh
- VLC(208) 10h 10h 10h 10h
- VLC(209) 9Dh 9Dh 9Dh 9Dh
- VLC(210) 10h 10h 10h 10h
- VLC(211) 43h 43h 43h 43h
- VLC(212) 10h 10h 10h 10h
- VLC(213) D3h D3h D3h D3h
- VLC(214) 10h 10h 10h 10h
- VLC(215) 2Bh 2Bh 2Bh 2Bh
- VLC(216) 10h 10h 10h 10h
- VLC(217) BBh BBh BBh BBh
- VLC(218) 10h 10h 10h 10h
- VLC(219) 67h 67h 67h 67h
- VLC(220) 10h 10h 10h 10h
- VLC(221) F7h F7h F7h F7h
- VLC(222) 10h 10h 10h 10h
- VLC(223) 5Fh 5Fh 5Fh 5Fh
- VLC(224) 07h 07h 07h 07h
- VLC(225) 0Fh 0Fh 0Fh 0Fh
- VLC(226) 10h 10h 10h 10h
- VLC(227) A1h A1h A1h A1h
- VLC(228) 10h 10h 10h 10h
- VLC(229) D1h D1h D1h D1h
- VLC(230) 10h 10h 10h 10h
- VLC(231) 49h 49h 49h 49h
- VLC(232) 10h 10h 10h 10h
- VLC(233) 59h 59h 59h 59h
- VLC(234) 10h 10h 10h 10h
- VLC(235) 45h 45h 45h 45h
- VLC(236) 10h 10h 10h 10h
- VLC(237) 55h 55h 55h 55h
- VLC(238) 10h 10h 10h 10h
- VLC(239) 4Dh 4Dh 4Dh 4Dh
- VLC(240) 10h 10h 10h 10h
- VLC(241) 5Dh 5Dh 5Dh 5Dh
- VLC(242) 10h 10h 10h 10h
- VLC(243) C3h C3h C3h C3h
- VLC(244) 10h 10h 10h 10h
- VLC(245) 33h 33h 33h 33h
- VLC(246) 10h 10h 10h 10h
- VLC(247) ABh ABh ABh ABh
- VLC(248) 10h 10h 10h 10h
- VLC(249) 7Bh 7Bh 7Bh 7Bh
- VLC(250) 10h 10h 10h 10h
- VLC(251) E7h E7h E7h E7h
- VLC(252) 10h 10h 10h 10h
- VLC(253) 0Fh 0Fh 0Fh 0Fh
- VLC(254) 10h 10h 10h 10h
- VLC(255) DFh DFh DFh DFh
- VLC(256) 0Ah 0Ah 0Ah 0Ah
- VLC(257) 6Fh 6Fh 6Fh 6Fh
- VLC(258) 10h 10h 10h 10h
- VLC(259) 61h 61h 61h 61h
- VLC(260) 10h 10h 10h 10h
- VLC(261) 31h 31h 31h 31h
- VLC(262) 10h 10h 10h 10h
- VLC(263) C9h C9h C9h C9h
- VLC(264) 10h 10h 10h 10h
- VLC(265) D9h D9h D9h D9h
- VLC(266) 10h 10h 10h 10h
- VLC(267) C5h C5h C5h C5h
- VLC(268) 10h 10h 10h 10h
- VLC(269) D5h D5h D5h D5h
- VLC(270) 10h 10h 10h 10h
- VLC(271) CDh CDh CDh CDh
- VLC(272) 10h 10h 10h 10h
- VLC(273) DDh DDh DDh DDh
- VLC(274) 10h 10h 10h 10h
- VLC(275) 23h 23h 23h 23h
- VLC(276) 10h 10h 10h 10h
- VLC(277) B3h B3h B3h B3h
- VLC(278) 10h 10h 10h 10h
- VLC(279) 6Bh 6Bh 6Bh 6Bh
- VLC(280) 10h 10h 10h 10h
- VLC(281) FBh FBh FBh FBh
- VLC(282) 10h 10h 10h 10h
- VLC(283) 17h 17h 17h 17h
- VLC(284) 10h 10h 10h 10h
- VLC(285) 8Fh 8Fh 8Fh 8Fh
- VLC(286) 10h 10h 10h 10h
- VLC(287) 3Fh 3Fh 3Fh 3Fh
- VLC(288) 03h 03h 03h 03h
- VLC(289) 02h 02h 02h 02h
- VLC(290) 03h 03h 03h 03h
- VLC(291) 06h 06h 06h 06h
- VLC(292) 03h 03h 03h 03h
- VLC(293) 01h 01h 01h 01h
- VLC(294) 02h 02h 02h 02h
- VLC(295) 00h 00h 00h 00h
- VLC(296) 03h 03h 03h 03h
- VLC(297) 05h 05h 05h 05h
- VLC(298) 03h 03h 03h 03h
- VLC(299) 03h 03h 03h 03h
- VLC(300) 04h 04h 04h 04h
- VLC(301) 07h 07h 07h 07h
- VLC(302) 05h 05h 05h 05h
- VLC(303) 0Fh 0Fh 0Fh 0Fh
- VLC(304) 06h 06h 06h 06h
- VLC(305) 1Fh 1Fh 1Fh 1Fh
- VLC(306) 07h 07h 07h 07h
- VLC(307) 3Fh 3Fh 3Fh 3Fh
- VLC(308) 00h 00h 00h 00h
- VLC(309) 00h 00h 00h 00h
- VLC(310) 00h 00h 00h 00h
- VLC(311) 00h 00h 00h 00h
- VLC(312) 00h 00h 00h 00h
- VLC(313) 00h 00h 00h 00h
- VLC(314) 00h 00h 00h 00h
- VLC(315) 00h 00h 00h 00h
- VLC(316) 00h 00h 00h 00h
- VLC(317) 00h 00h 00h 00h
- VLC(318) 00h 00h 00h 00h
- VLC(319) 00h 00h 00h 00h
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